Quick Question About RAM

by **Bagginses** » Sat Oct 11, 2003 7:58 pm

Alright, I know this is probably a really retarded question with a really obvious answer, but if I buy 2700 RAM for my motherboard, and my motherboard states that it will support 2100 RAM and makes no mention of 2700 RAM, then the 2700 RAM probably won't work, right?

-Bagginses

by **BladeRunner** » Sat Oct 11, 2003 8:04 pm

Bagginses, it will work but run at the slower speed of pc2100.
imo, its a good idea to buy faster ram, that way it leaves you
some room for over clocking if you are in to that.

by **Bagginses** » Sat Oct 11, 2003 8:10 pm

well, here's the dilemma, I have 256 DDR RAM in my computer now. I just bought a stick of 512 DDR 2700 RAM and it's in my computer, but my system's not recognizing it, and there is definitely no improvement in performance, I've tried the RAM in the other slots and I'm not noticing a difference...

-Bagginses

by **BladeRunner** » Sat Oct 11, 2003 8:54 pm

in cmos or bootup screen does it show 768 meg of ram?

by **Bagginses** » Sat Oct 11, 2003 10:19 pm

cmos is telling me I still only have 256. I've also moved that stick into the other slots, and it will only work in the first one, but then the 512 won't work in any of the slots. Basically the computer sounds like it turns on, but nothing comes up on the monitor....

-Bagginses

by **MMmmGood** » Sat Oct 11, 2003 10:23 pm

Sounds like incompatible RAM

by Conscious* » Sat Oct 11, 2003 10:24 pm

yea..some ram sticks are compatable on certain motherboards, you mgiht want to look into that and maybe return it for a new one if you can

by **Bagginses** » Sat Oct 11, 2003 10:31 pm

I'll have to check my motherboard's website and see if I can find any sort of compatability listing. This is getting quite problematic for me. First I accidently ordered SDRAM, then I bought DDR RAM that didn't work, returned it, got the DDR that I have now, and this won't work.

-Bagginses

by **=XAV=** » Sun Oct 12, 2003 4:00 am

You should try with only the 512 RAM.
These 2 types of ram are not compatible with each other at the same time BUT, on most of the MB using 2100, you may use 2700 but alone, without 2100...
I own a motherboard using DDR at 266Mhz (I think it's 2100). As we cannot find PC2100 any more, I tried with 2 vkind of DDR: at 333Mhz and at 400 Mhz. They both worked if used alone. Try to use always the same max speed of ram (only 333 or only 400 and 95% of MBoards will accept it

Salut

Xavier

PS: sorry if i'm not clear, I'm sometimes jumping from 1 idea to another...

by **Cpl. Bingham** » Sun Oct 12, 2003 5:52 am

Alot of mobo's require buffered/registered ram if you want to fill all of the ram slots. You could put a trillion gigs of ram in a single slot, but as soon as you want to use all three or four, the sticks all need to be buffered to work.

Fortunately this type of mobo is being phased out, but they're still out there.

by **Bagginses** » Sun Oct 12, 2003 11:43 am

Well, I'll try just putting in the 512 by itself again, but everytime I've tried putting it in the main slot without anything in the other slots, the computer will sound like it's booting up, but none of the BIOS will show up on the screen and it won't load into windows or anything. But, like I said, I'll give it another shot.

-Bagginses

by **Bullhead** » Sun Oct 12, 2003 6:17 pm

Some motherboards are cool with mismatched (speed) memory, some are pissy little bitches that need exact matches. Also, if you're running a dual channel board, you really want to keep the memory as similar as possible. If you aren't sure, and you have a name-brand PC, or know the manufact/model mobo, go to http://www.crucial.com and see what they say it takes (although you don't have to buy fromt them!).

There is always the possibilty that's a bad stick, too.

by **Bagginses** » Sun Oct 12, 2003 8:13 pm

Well, I'm going to assume that it's the motherboard only because this is my second attempt at installing new RAM. I'm going to try and replace this RAM one more time with a stick of Kingston, so if that doesn't work too, than it'll be safe to say it's the motherboard.

-Bagginses

by **Bullhead** » Mon Oct 13, 2003 7:22 am

If you want to test the mobo with the "good" stick of mem, run Memtest86 overnight, or while at work, etc. and see if it passes. It helped me track down an elusive system issues that turned out to be a bad mem conrtoller, and it only errored after 5-10 cycles of memtest, and only on the upper blocks (last 10-20mb or so). I forget the exact link, but I suspect it's memtest86.org, or something of the like.

Also, if I read the prior posts right, you're saying the "good" stick only works in one of your (three?) dimm slots? If so, it may not mean the board is bad, again, some dual channel boards only like to run single channel (i.e. one DIMM) in one slot, but others work in dual....my nforce2 board gets pissy if you run single channel in anything other than DIMM 1 (of three). food for thought

by **Bagginses** » Mon Oct 13, 2003 9:26 am

I have a Micro Star Industries nforce2 board, so I might be have that same problem you have. Do you know how to go about fixing that?

-Bagginses

Quick Question About RAM

Quick Question About RAM

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